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#ifndef _ASM_IA64_PCI_H
#define _ASM_IA64_PCI_H
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/string.h>
#include <linux/types.h>
#include <asm/io.h>
#include <asm/scatterlist.h>
#include <asm/hw_irq.h>
struct pci_vector_struct {
__u16 segment; /* PCI Segment number */
__u16 bus; /* PCI Bus number */
__u32 pci_id; /* ACPI split 16 bits device, 16 bits function (see section 6.1.1) */
__u8 pin; /* PCI PIN (0 = A, 1 = B, 2 = C, 3 = D) */
__u32 irq; /* IRQ assigned */
};
/*
* Can be used to override the logic in pci_scan_bus for skipping already-configured bus
* numbers - to be used for buggy BIOSes or architectures with incomplete PCI setup by the
* loader.
*/
#define pcibios_assign_all_busses() 0
#define PCIBIOS_MIN_IO 0x1000
#define PCIBIOS_MIN_MEM 0x10000000
void pcibios_config_init(void);
struct pci_dev;
/*
* PCI_DMA_BUS_IS_PHYS should be set to 1 if there is _necessarily_ a direct
* correspondence between device bus addresses and CPU physical addresses.
* Platforms with a hardware I/O MMU _must_ turn this off to suppress the
* bounce buffer handling code in the block and network device layers.
* Platforms with separate bus address spaces _must_ turn this off and provide
* a device DMA mapping implementation that takes care of the necessary
* address translation.
*
* For now, the ia64 platforms which may have separate/multiple bus address
* spaces all have I/O MMUs which support the merging of physically
* discontiguous buffers, so we can use that as the sole factor to determine
* the setting of PCI_DMA_BUS_IS_PHYS.
*/
extern unsigned long ia64_max_iommu_merge_mask;
#define PCI_DMA_BUS_IS_PHYS (ia64_max_iommu_merge_mask == ~0UL)
static inline void
pcibios_penalize_isa_irq (int irq, int active)
{
/* We don't do dynamic PCI IRQ allocation */
}
#include <asm-generic/pci-dma-compat.h>
#ifdef CONFIG_PCI
static inline void pci_dma_burst_advice(struct pci_dev *pdev,
enum pci_dma_burst_strategy *strat,
unsigned long *strategy_parameter)
{
unsigned long cacheline_size;
u8 byte;
pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &byte);
if (byte == 0)
cacheline_size = 1024;
else
cacheline_size = (int) byte * 4;
*strat = PCI_DMA_BURST_MULTIPLE;
*strategy_parameter = cacheline_size;
}
#endif
#define HAVE_PCI_MMAP
extern int pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma,
enum pci_mmap_state mmap_state, int write_combine);
#define HAVE_PCI_LEGACY
extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
struct vm_area_struct *vma,
enum pci_mmap_state mmap_state);
#define pci_get_legacy_mem platform_pci_get_legacy_mem
#define pci_legacy_read platform_pci_legacy_read
#define pci_legacy_write platform_pci_legacy_write
struct iospace_resource {
struct list_head list;
struct resource res;
};
struct pci_controller {
struct acpi_device *companion;
void *iommu;
int segment;
int node; /* nearest node with memory or -1 for global allocation */
void *platform_data;
};
#define PCI_CONTROLLER(busdev) ((struct pci_controller *) busdev->sysdata)
#define pci_domain_nr(busdev) (PCI_CONTROLLER(busdev)->segment)
extern struct pci_ops pci_root_ops;
static inline int pci_proc_domain(struct pci_bus *bus)
{
return (pci_domain_nr(bus) != 0);
}
static inline struct resource *
pcibios_select_root(struct pci_dev *pdev, struct resource *res)
{
struct resource *root = NULL;
if (res->flags & IORESOURCE_IO)
root = &ioport_resource;
if (res->flags & IORESOURCE_MEM)
root = &iomem_resource;
return root;
}
#define HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ
static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
{
return channel ? isa_irq_to_vector(15) : isa_irq_to_vector(14);
}
#ifdef CONFIG_INTEL_IOMMU
extern void pci_iommu_alloc(void);
#endif
#endif /* _ASM_IA64_PCI_H */